Sideroxylin from Miconia ioneura:: Monohydrate crystal structure from high resolution X-ray powder diffraction

被引：0
作者：
Pagola, Silvina [1 ]
Tracanna, Maria I. [2 ]
Amani, Sara M. [2 ]
Gonzalez, Ana M. [2 ]
Raschi, Ana B. [2 ]
Romano, Elida [2 ]
Benavente, Alba M. [2 ]
Stephens, Peter W.
机构：
[1] Coll William & Mary, Appl Res Ctr, Dept Phys, Newport News, VA 23606 USA
[2] Natl Univ Tucuman, Fac Biochem Chem & Pharm, RA-4000 San Miguel De Tucuman, Argentina
来源：
NATURAL PRODUCT COMMUNICATIONS | 2008年 / 3卷 / 05期
关键词：
X-ray powder diffraction; crystal structure determination; direct-space methods; simulated annealing; flavone; Miconia ioneura;
D O I：
暂无
中图分类号：
R914 [药物化学];
学科分类号：
100701 ;
摘要：
High resolution X-ray powder diffraction has been used to obtain the crystal structure of sideroxylin (4H-1-Benzopyran-4-one,5-hydroxy-2-(4-hydroxyphenyl)-7-methoxy-6,8-dimethyl) monohydrate, (C18H16O5).H2O, isolated from the bioactive ethyl acetate extract of Miconia ioneura Griseb (Melastomataceae) leaves. The crystal structure was determined using direct space methodology based on the simulated annealing algorithm. Thermogravimetric analysis shows that the material dehydrates while heated from room temperature to similar to 150 degrees C.
引用
收藏
页码：759 / 764
页数：6
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